CFR › Title 21 › Part 882 › §882.480021 CFR §882.4800Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)Identification. A self-retaining retractor for neurosurgery is a self-locking device used to hold the edges of a wound open during neurosurgery.(b)Classification. Class II (performance standards).